Search for isovector valence-shell excitations in 140Nd and 142Sm via Coulomb excitation reactions of radioactive ion beams

Ralph Kern; Robert Stegmann; Norbert Pietralla; Georgi Rainovski; Liam Paul Gaffney; Andrey Blazhev; Amar Boukhari; Joakim Cederkäll; James Cubiss; Martin Djongolov; Christoph Fransen; Kalin Gladnishki; Efstathios Giannopoulos; Herbert Hess; Jan Jolie; Vasil Karayonchev; Levent Kaya; James Keatings; Diana Kocheva; Thorsten Kröll; Oliver Möller; George O'Neill; Janne Pakarinen; Peter Reiter; Dawid Rosiak; Marcus Scheck; Jacob Snall; Pär-Anders Söderström; Pietro Spagnoletti; Milena Stoyanova; Stefan Thiel; Andreas Vogt; Nigel Warr; Andree Welker; Volker Werner; Johannes Wiederhold; Hilde De Witte; Radostina Zidarova

doi:10.1051/epjconf/201819403003

Search for isovector valence-shell excitations in ¹⁴⁰Nd and ¹⁴²Sm via Coulomb excitation reactions of radioactive ion beams

Ralph Kern, Robert Stegmann, Norbert Pietralla, Georgi Rainovski, Liam Paul Gaffney, Andrey Blazhev, Amar Boukhari, Joakim Cederkäll, James Cubiss, Martin Djongolov, Christoph Fransen, Kalin Gladnishki, Efstathios Giannopoulos, Herbert Hess, Jan Jolie, Vasil Karayonchev, Levent Kaya, James Keatings, Diana Kocheva, Thorsten KröllOliver Möller, George O'Neill, Janne Pakarinen, Peter Reiter, Dawid Rosiak, Marcus Scheck, Jacob Snall, Pär-Anders Söderström, Pietro Spagnoletti, Milena Stoyanova, Stefan Thiel, Andreas Vogt, Nigel Warr, Andree Welker, Volker Werner, Johannes Wiederhold, Hilde De Witte, Radostina Zidarova

School of Computing, Engineering and Physical Sciences

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Abstract

Projectile Coulomb excitation experiments were performed at HIE-ISOLDE at CERN with the radioactive ion beams of ¹⁴⁰Nd and ¹⁴²Sm. Ions with an energy of 4:62 MeV/A were impinging on a 1.45 mg/cm² thick ²⁰⁸Pb target. The γ-rays depopulating the Coulomb-excited states were recorded by the HPGe-array MINIBALL and scattered particles were detected by a double-sided silicon strip detector. Experimental intensities were used for the determination of electromagnetic transition matrix elements. A preliminary result of the B(M1; 2⁺₃ → 2⁺₁) of ¹⁴⁰Nd and an upper limit for the case of ¹⁴²Sm are revealing the main fragments of the proton-neutron mixed-symmetry 2⁺_1;ms states.

Original language	English
Article number	03003
Number of pages	5
Journal	EPJ Web of Conferences
Volume	194
Early online date	14 Nov 2018
DOIs	https://doi.org/10.1051/epjconf/201819403003
Publication status	E-pub ahead of print - 14 Nov 2018

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2018 11 14 Kern Search finalFinal published version, 330 KBLicence: CC BY

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Kern, R., Stegmann, R., Pietralla, N., Rainovski, G., Gaffney, L. P., Blazhev, A., Boukhari, A., Cederkäll, J., Cubiss, J., Djongolov, M., Fransen, C., Gladnishki, K., Giannopoulos, E., Hess, H., Jolie, J., Karayonchev, V., Kaya, L., Keatings, J., Kocheva, D., ... Zidarova, R. (2018). Search for isovector valence-shell excitations in ¹⁴⁰Nd and ¹⁴²Sm via Coulomb excitation reactions of radioactive ion beams. EPJ Web of Conferences, 194, Article 03003. Advance online publication. https://doi.org/10.1051/epjconf/201819403003

@article{7828ec509c7042b5ba7a50779b3b6af4,

title = "Search for isovector valence-shell excitations in 140Nd and 142Sm via Coulomb excitation reactions of radioactive ion beams",

abstract = "Projectile Coulomb excitation experiments were performed at HIE-ISOLDE at CERN with the radioactive ion beams of 140Nd and 142Sm. Ions with an energy of 4:62 MeV/A were impinging on a 1.45 mg/cm2 thick 208Pb target. The γ-rays depopulating the Coulomb-excited states were recorded by the HPGe-array MINIBALL and scattered particles were detected by a double-sided silicon strip detector. Experimental intensities were used for the determination of electromagnetic transition matrix elements. A preliminary result of the B(M1; 2+3 → 2+1) of 140Nd and an upper limit for the case of 142Sm are revealing the main fragments of the proton-neutron mixed-symmetry 2+1;ms states.",

author = "Ralph Kern and Robert Stegmann and Norbert Pietralla and Georgi Rainovski and Gaffney, {Liam Paul} and Andrey Blazhev and Amar Boukhari and Joakim Cederk{\"a}ll and James Cubiss and Martin Djongolov and Christoph Fransen and Kalin Gladnishki and Efstathios Giannopoulos and Herbert Hess and Jan Jolie and Vasil Karayonchev and Levent Kaya and James Keatings and Diana Kocheva and Thorsten Kr{\"o}ll and Oliver M{\"o}ller and George O'Neill and Janne Pakarinen and Peter Reiter and Dawid Rosiak and Marcus Scheck and Jacob Snall and P{\"a}r-Anders S{\"o}derstr{\"o}m and Pietro Spagnoletti and Milena Stoyanova and Stefan Thiel and Andreas Vogt and Nigel Warr and Andree Welker and Volker Werner and Johannes Wiederhold and {De Witte}, Hilde and Radostina Zidarova",

year = "2018",

month = nov,

day = "14",

doi = "10.1051/epjconf/201819403003",

language = "English",

volume = "194",

journal = "EPJ Web of Conferences",

issn = "2100-014X",

publisher = "EDP Sciences",

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Kern, R, Stegmann, R, Pietralla, N, Rainovski, G, Gaffney, LP, Blazhev, A, Boukhari, A, Cederkäll, J, Cubiss, J, Djongolov, M, Fransen, C, Gladnishki, K, Giannopoulos, E, Hess, H, Jolie, J, Karayonchev, V, Kaya, L, Keatings, J, Kocheva, D, Kröll, T, Möller, O, O'Neill, G, Pakarinen, J, Reiter, P, Rosiak, D, Scheck, M, Snall, J, Söderström, P-A, Spagnoletti, P, Stoyanova, M, Thiel, S, Vogt, A, Warr, N, Welker, A, Werner, V, Wiederhold, J, De Witte, H & Zidarova, R 2018, 'Search for isovector valence-shell excitations in ¹⁴⁰Nd and ¹⁴²Sm via Coulomb excitation reactions of radioactive ion beams', EPJ Web of Conferences, vol. 194, 03003. https://doi.org/10.1051/epjconf/201819403003

TY - JOUR

T1 - Search for isovector valence-shell excitations in 140Nd and 142Sm via Coulomb excitation reactions of radioactive ion beams

AU - Kern, Ralph

AU - Stegmann, Robert

AU - Pietralla, Norbert

AU - Rainovski, Georgi

AU - Gaffney, Liam Paul

AU - Blazhev, Andrey

AU - Boukhari, Amar

AU - Cederkäll, Joakim

AU - Cubiss, James

AU - Djongolov, Martin

AU - Fransen, Christoph

AU - Gladnishki, Kalin

AU - Giannopoulos, Efstathios

AU - Hess, Herbert

AU - Jolie, Jan

AU - Karayonchev, Vasil

AU - Kaya, Levent

AU - Keatings, James

AU - Kocheva, Diana

AU - Kröll, Thorsten

AU - Möller, Oliver

AU - O'Neill, George

AU - Pakarinen, Janne

AU - Reiter, Peter

AU - Rosiak, Dawid

AU - Scheck, Marcus

AU - Snall, Jacob

AU - Söderström, Pär-Anders

AU - Spagnoletti, Pietro

AU - Stoyanova, Milena

AU - Thiel, Stefan

AU - Vogt, Andreas

AU - Warr, Nigel

AU - Welker, Andree

AU - Werner, Volker

AU - Wiederhold, Johannes

AU - De Witte, Hilde

AU - Zidarova, Radostina

PY - 2018/11/14

Y1 - 2018/11/14

N2 - Projectile Coulomb excitation experiments were performed at HIE-ISOLDE at CERN with the radioactive ion beams of 140Nd and 142Sm. Ions with an energy of 4:62 MeV/A were impinging on a 1.45 mg/cm2 thick 208Pb target. The γ-rays depopulating the Coulomb-excited states were recorded by the HPGe-array MINIBALL and scattered particles were detected by a double-sided silicon strip detector. Experimental intensities were used for the determination of electromagnetic transition matrix elements. A preliminary result of the B(M1; 2+3 → 2+1) of 140Nd and an upper limit for the case of 142Sm are revealing the main fragments of the proton-neutron mixed-symmetry 2+1;ms states.

AB - Projectile Coulomb excitation experiments were performed at HIE-ISOLDE at CERN with the radioactive ion beams of 140Nd and 142Sm. Ions with an energy of 4:62 MeV/A were impinging on a 1.45 mg/cm2 thick 208Pb target. The γ-rays depopulating the Coulomb-excited states were recorded by the HPGe-array MINIBALL and scattered particles were detected by a double-sided silicon strip detector. Experimental intensities were used for the determination of electromagnetic transition matrix elements. A preliminary result of the B(M1; 2+3 → 2+1) of 140Nd and an upper limit for the case of 142Sm are revealing the main fragments of the proton-neutron mixed-symmetry 2+1;ms states.

U2 - 10.1051/epjconf/201819403003

DO - 10.1051/epjconf/201819403003

M3 - Article

SN - 2100-014X

VL - 194

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 03003

ER -

Search for isovector valence-shell excitations in 140Nd and 142Sm via Coulomb excitation reactions of radioactive ion beams

Abstract

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Search for isovector valence-shell excitations in ¹⁴⁰Nd and ¹⁴²Sm via Coulomb excitation reactions of radioactive ion beams